about half of those are complaining about rides not being open, or to cold to open the ones meant to be open. Those are people that did little research.
I would argue that this is at least partially the result of the park doing an insufficient job of communicating the state of the park right now. If you go on the park's website, yes, you can find a page of what limited attractions are available right now, but you have to actively look for it. There's no obvious indication that the Food & Wine Festival is a limited-capacity, limited-operation COVID event and not the full park, which is to say that it's entirely possible to navigate to the park's webpage and straight to buying a ticket without encountering any sort of information to warn them of the park's limited state right now.
And yeah, it may seem obvious to us that things are going to be limited right now, but if you're a non-enthusiast and you happen to decide to make a trip to BGW and buy a ticket, are you really going to be going out of your way to look for whether everything is open or not? Would you know any better than to assume your $85 ticket is going to get you the BGW experience you usually expect? When I visited last weekend with a handful of friends, they had no idea so many things would be closed until I told them; they're not stupid people, they just didn't know any better.
tl;dr I believe the park's poor communication is at least partially responsible for "the people that did little research" not being aware of the current state of the park's operations.